Rewrite composer toolbar in Ember
Ability to overwrite any translation with arbitrary string
Ability for groups to have a "group owner" than can add and remove people from the group
Make group messaging a first class citizen in Discourse, allow PMs to groups, allow group mentions (under controlled circumstances)
Make more system-sent email text customizable in admin, customize, text
Fix topic splits having owner of person who split the topic
Replace "Dismiss Posts" and "Dismiss Topics" with "Dismiss" and a pop-up explanation / selector
Smoother loading of stream, show placeholder posts while loading batches
Update emoji support, use slight smile
add and remove users in messages generates post notification in topic
Refactor user page for significantly better group messaging support, and more speed. Also add summary page.
Improve blocked state so that it can be triggered by admins and is more useful overall
Make top criteria formula multipliers controlled by site settings
Rebuild post / topic rendering with custom virtual DOM code to bypass Ember and speed up by at least 3x (ideally 5x to 10x) (see blog post)
Private support portal email inbox improvements (essentially much better first class group email support, staged user accounts, etc)
Better control of like notifications and better notification default so you know when old posts are getting liked
Improve email context options (per this topic) and new less verbose email context default
Longer default passwords, better verification of changed email addresses for staff, and notification when email is changed for regular users.
Add three new bronze/silver/gold badges for likes, including badge for using all likes in a day
Full screen mobile editor with preview/toolbar
Better badge page formatting and longer, more humane badge descriptions
